What types of windows can I choose from for my detector?
Our supplier VIGO offers thermoelectrically cooled detectors which are typically provided with:
- 3° wedged Al2O3 windows (wAl2O3)
- 3° wedged ZnSe AR coated windows (wZnSeAR)
3° wedge prevents “fringing” – interference from stray back reflections and there is also windows optimized for different spectral bands. Windows can be anti-reflection (AR) coated on two surfaces. We can mount windows provided by the user as well as filters.
VIGO has summarized their detector windows in the figure below.